OpenERP is claimed to be a complete ERP and CRM system. It has separate client and server components. Among the features are management accounting, financial accounting, inventory management, sales and purchase management, tasks automation, Human Resource Management, marketing campaigns, help desk, and point of sale.

Open ERP is known to be very complete and extremely modular, with 350 available modules. It is based on a strong MVC architecture, with a distributed server, flexible workflows, an object database, a dynamic GUI, an XML-RPC interface, and customizable reports.

Compiere

Compiere is an ERP and CRM business solution for the Small and Medium-sized Enterprise in distribution, retail, service and manufacturing.

Compiere is distributed by Compiere, Inc. and through the Compiere Partner Network, a collection of trained and authorized business partners.

The application and source code is provided on the basis of the GNU General Public License version 2. A commercial license, documentation and support contracts are also available for a fee.

Adempiere

Adempiere is a community-driven project that develops and supports an open source business solution of the same name that delivers Enterprise Resource Planning, Customer Relationship Management and Supply Chain Management functionality. The following business areas are addressed by the Adempiere application:

SQL-Ledger is a double entry accounting/ERP system. Accounting data is stored in a SQL database server, for the display any text or GUI browser can be used.

The entire system is linked through a chart of accounts. Each item in inventory is linked to income, expense, inventory and tax accounts. When items are sold and purchased, the accounts are automatically updated.

Invoices, Packing Lists, Income Statement, Balance Sheet, Sales, Work and Purchase Orders, Statements, Receipts and Checks are generated from templates and can be changed to suit your needs.

I would like to add 7 more to that list. As I've said before, finance or accounting software will prove valuable for those who have small or medium-sized business as it will allow users to do important tasks like recording and processing accounting transactions within functional modules such as accounts receivable, accounts payable, payroll, and trial balance.

So here is another list of Free and Open Source finance/accounting software that is available for Linux:

Grisbi

Grisbi is a personal finance system that can manage multiple accounts, currencies and users. It handles third party, expenditure and receipt categories, as well as budgetary lines, financial years, and other information that makes it suitable for associations.

Openbravo Openbravo is a web-based, open source ERP business solution for small and medium sized businesses or companies that was originally based on the Compiere ERP program.

It features a web-based interface, where the user can view the entire status of a company, including production information, inventory, customer information, order tracking, and workflow information.

It is possible to synchronize this information with other applications through the Java-based Openbravo API. Openbravo can also create and export reports and data to several formats, such as PDF and Microsoft Excel.

jGnashjGnash is a free personal finance management application for the Java runtime environment. It is a double entry system with support for multiple currencies.

jGnash can import OFX, QIF and GnuCash files. It can also automatically update stock prices and currency exchange rates.

KMyMoney KMyMoney is a simple and user-friendly personal finance manager for the KDE desktop environment. The project aims for accuracy, ease-of-use, and familiar features.

KMyMoney has functionality similar to that of Microsoft Money. It supports different account types, categorisation of expenses and incomes, reconciliation of bank accounts and import/export to the “QIF” file format.

LedgerSMBLedgerSMB is a double entry accounting system where data is stored in an SQL Database Server and a standard web browser can be used as its user interface.

The system uses the Perl language and a Perl database interface module for processing, and PostgreSQL for data storage.

HomeBankHomeBank is a personal accounting software package that can be used to manage personal accounts. With it, you can create dynamic, easy, and powerful reports with graphical charts using Cairo.

Some of its unique features are:
* Transaction import in CSV format (homebank specific format)
* Direct add of payee and categories from the register dialog
* Tag feature for transactions
* Pre-defined transactions, which can be automated
* Pre-filling of transactions from a bookmark
* Dual pad of cheque and automated cheque number increment
* add transactions by inherit from existing ones
* Multiple transactions edit for each columns at once
* Easy transfer between accounts, which can be automated

JQuantLibJQuantLib is a comprehensive framework for quantitative finance that offers several mathematical and statistical tools needed for financial instrument valuation, calculation of VaR, portfolio valuation, etc.

It is based on QuantLib and is written in Java. JQuantLib does its best efforts to mimic as close as possible the API exposed by QuantLib, offering a smooth transition path for developers and organizations willing to employ financial applications written in Java while keeping commitment to high performance and low latency.

Features include:

* Support for generic pricing engines;
* Support for generic financial instruments;
* Date, Calendar and IMM support;
* Trading calendars for the most important markets;
* Support for generic term structures;
* Support for generic 1D and 2D interpolations;

Wow, I'll give this a try. An open source accounting software is pretty hard to find. I've been using Peachtree Quantum since its first release, and it has been doing its wonders for my business on the accounting side. I'm willing to try this software of yours out to compare it to Peachtree's current version, Peachtree Quantum 2011.